Question

what must you do before making any maneuver? signal, then check rear view mirrors, then check blind spots . signal, then look through the back window, then press the brakes. check blind spots, then look over your right shoulder, and then signal.

Explanation:

This is the standard safe driving procedure: first signal your intent to other road users, then use rear-view mirrors to monitor traffic behind, and finally check blind spots (areas not visible in mirrors) to ensure it is safe to perform the maneuver. The other options either include unnecessary actions or follow an incorrect order.

Answer:

Signal, then check rear view mirrors, then check blind spots .